
Crick and Watson's DNA Molecular Model
1953
1953
1949
1948-1953
1959
1949
1945-1955
1957
1945
1960
1942
1955
1950-1952
1951
1940
circa 1956-1959
1953
2000-100 BCE
1945
1947
1940
1955
1955
1961
1942
1946
1940
1960
1950
1960
1951
1955
circa 1950
1950
1948
1940-1945
1950-1960
1940-1949
1942
1950-1960
circa 1950
1950-1960
1950-1951
1960
1954
1960
1946-1960
1945-1955
1957
1945-1955
1943